Stopper for containers



NQV. 29, 1927. 1,650,760

F. LOBL STOPPER FOR CONTAINERS Filed Dec. 30. 1926 2 Sheets-Sheet 1 Nov. 29,1927. 1,650,760

F. LOBL STOPPER FOR CONTAINERS 'Filed Dec. 39. 1926 2 Sheets-Sheet 2 anygreatphysicalleefimt- Patented Nev," 29, 1927.

muse ESTATE 1s swam-Eamon'eoummimus.

licati nefil di eeember 30,1926. Seria1;NQ."158,0b3.

TlThisin-venfiim nelaiestd jimprmieinenfts in ,stqppers i501 egntaimers generally, and is intended particularly to pizoyifle lean efiective slid easily applied elqsurefep centainers or receptacles such .as "hoi-Waterf bottles, ice-hugs andffountainsy inges- :"Whileethe disd csi is aapplietble .to such piirfiieula use, it is kobyieilsjthat jit may be @used L0 equal advantege with all kinds offbothles,jarsuan con- ,tajin'ers where his desirable .01 necessary to ,use va; stepper, Which will p vi'g an ha tight. or hemetmplQSH Q n whi ca easily applied mid remoyed, i. e, without "The details-9f hefdiselosure ziige illustrated a part OfthespecificELtiOn, and in which: Fig. riljisa ,sitieeelevation of him stepper as \aippliedto aJhot-wgtergor i e bag; 1

Fig. 2 is ap a,rtial-se c tional View of the stopper BODSUHQtiOIl with one form of washer usedin the assembly;

Fig. 3 is a 'hQttQm-pk nyie y the stopper with a p ortion pffene sidebrqken away to sh 1thei t li r ens ru tiqn;

"Fig, 4c is a partiahseqtioual elevaiiou the asher sho wnlih Fig.2;

washer construction;

Fig, 6 is afsideelemfio construction as modified fountain syringe; Fig.7

of the stopper is a partia lsectional eleyaltionof the construction ofFigxG; v

Fig. 8is afhottom plan View of struetion of Fig.6 and 9 is a pei spefctlyeview@fihewasher element.

Referring to theifigures QTSheehil of i 'ihei'" drawings, the body-pertions 1710f the stopper 4 and is surrounded and reinforcedfhy an inQ i turned flange on gthetep of the ela rup n V 'rig g smemiim 155016 backs the for use-With a element '3 en its under surface, and is seeured thereto by means fioff the hellew rivet 7; which is positioned c ehtrally vof the stopper and which @passes a CQttGIjPiIl 8, or simllur, devlce, with its eye extending above the -discfS. The eye of thGKQOjE-tG f- PiIi;afl OidS a. venie means or s onnectirig awchai elrcordfto the vstopper'to effect a swivel-"coneetioii, so that the {stopper may 'hetu rned in the qperutionof apply ng 1i; ho or remoy- 1t ,irrom a-eonta hefwm'hqut twistlr g or king h att ched ch in or cord;

The elampihg-jriug "fifhebween iitshhper and lower flanges, secures jt o gea'her thefbody '[membe1f1 end jth e dise3, and in addition engagesthe outer etlgelof the WQS hE-IIZQ and ani ingeontaet with "the fflange '2 V of thefbody member "1. i

"In ig. 2, the Washer 9 is Fig. 4, a nchthe dampingaetion of the ring somewhat distorts th s ci-oss-sec'tion,'bfingngflthe upper surfaceef the rounded" portion While fth'e mujel portion of theflagt uiitlersurface o fithe washer "is inclined inwardly and downwardly {to constitute a conical sealing surfacei Preferably, this "conical sur- 'ffl'CQiShOflld' Contact; for sealing, wibh a similarly jsl'oped surface, qntfihe he'e'k offthe:

containe gpas is shown in flott'eiiflihes inFig.

1; butt-his is hot essentizflyand the 'stopper .Wi1-1=;inake"a11 effective sealing Contact with circular epehingjthe than' et'er of yi hich is Within fihe Ilimits of fihe sloping eoncact area of'fihe Washer 9. Thebaekingffia nge 2.

is resilieiita idWherefore yiel'cls seinewfhh'fi to sejziling pressure, ull-owin 't-he Washer to readily conform c0 any. slight "irregularities 'iuthe sealing surface of the reeepltzrclm und when suflieient pressure is applied ito" "the stopper, as in sezi linggflie entire 'flahgeEQ will be somewhat flexed upw zrrlly, so that a constzlntxpiessure is thereby exerted by the {hang-e 2, uhihi'end's tWni-aintainthe Washer 111 :tigiwt and seal ng cmituct"withthe neck of V the ec ontuinerto which it is applied. 7 i

t The Washer construction (if 'Fig. '5, While .01 different eross-section isrlesi-gneclrto ipre sen-t fhe Sam-e, "or substantiallyfthe shine. (yer conical contact- '01 sealing surface; feiflci with its entire uppersurfaeefhfessed figziinst of a special CITOSS-SBCUOII, illustrated more completely in dftheiwasherintq Contact Withiheflange 2,

I .In Figs. 6 and 9 of the drawings, the

, principles of construction above described are illustrated as applied to a stopper to be used with a fountain syringe, in which use a. passage for liquid through to the center of the stopper is provided. Fig. 7 shows the detail of thisconstruction in sectionalelevation.

The body member l 'with flange '2, the clamping ring 5, and washer 9, are substantially the same as described in connection with Figs. 1-5. In lieu of the plastic'cover-piece 3, a pressed metallic coverpiece 10 is employed, having a flat marginal I flange 11 which is engaged by the clamping ring .5.' A flat ring-washer 12 of suitable fibrous. material, is interposed between the under surface of the flange 11 and the flange 2 of the body-member, so that when the stopper-elements are assembled and clamped securely together between upper and lower flanges of the ring 5, the top and body-member of the stopper will be separated from actual metallic contact to retard the conduction of heat and the possibility of leakage between the elements is substantially minimized. A. short length of metallic tubing 13 extends through the central part of the stopper construction, through an opening in the bottom :of the body element 1, and extending for a short distance beyond the cover-plate 10 to provide a convenient means for the attachingofa section of rubber hose which is a necessary part ofthe equipment a of a fountain syrin e. P that the sealin It will be apparent action of this construction is the same as escribed in connection with the other figures, and that its method of use and advantages are substantially the same. Slight changes in the mechanical details of thedevice, obviously can be made without departure from the generic disclosure herein made.

. a What I claim to be new is:

1.,In a stopper for containers comprising a hollow metal body portion with a laterally projectin ends of the stopper and near the upper end thereof to form a flexible resilient follower,

' an annular washer encircling the body portion, and means consisting of an outer clamping ring for permanently attaching the washer to the stopper so that the washer is firmly clamped on one side against the under surface of the circular flange while presenting on its other side a downwardly outer encircling circular flange intermediate the,

and inwardly inclined conical sealing surface.

2. In a stopper for containers comprising a hollow cylindrical body portion of sheet metal which is formed into cup-shape with its side walls threadedand having an outwardly and upwardly inclined circular flange at its upper edge, a top or cover plate for the bodyportion consisting of a circular disk which extends to cover the body portion and its projecting flange, a washer encircling the body portion and beneath the under surface of the flange-thereof, and an ring 'havin clamping flanges which fasten together t e elements of the stopper with the washer permanently secured thereto being held against the pro- J'ecting flange of the body portion and presenting on its under side a downwardly and inwardly inclined conical sealing surface.

3. A stopper for containers comprising a cup shaped body portion of sheet metal having its side walls pressed into the form of screw threads, and an outwardly flaring circular flange at its upper edge, a washer encircling the body portion and positioned beneath the flange thereof the washer being of molded elastic material and having a reduced cross section at its outer edge, a top or coverv element for the bodyportion consisting of a circular ,disk of molded plastic material of suflicient thickness to constitute an effective heat insulator and covering the body portion'and its projecting flange, and an outer encircling 'ring having upper and lower clamping flanges between which the cover, body portion, and washer are assembled and retained in fixed relationship with the washer permanently held against the under side of the projecting flange of the body member and presenting on its under side a downwardly and inwardly inclined conical sealing surface. a

' 4. A stopper for containers as set forth in claim 3, in which the cover element is apertured at its center to receive a swivel connector.

5. A stopper forcontainers comprising a 'hollow metallic body portion, and a cover therefor consistingtof a relatively thick disk of heat insulating material, a washer encirclin the body portion'and positioned beneat the outeried e of the cover and near the top of the b0 y portion, and an outer encircling ring constituting clamping means by which thewasher,,body portion and cover are permanently secured together to constitute the stopper, the washer being pressed against the body portion and retained in such position that its underside presents a downwardly and inwardly sloping conical sealing surface. a

6. In a stopper forcontainersa body portion having an outwardly extending annular flange, an annular washer encircling the outwardly extending peripheral flange, and means for clamping the flange of the Washer to the flange of the body portion at their outer edges, whereby the washer is held against the said flange with its lower face presenting a downwardly and inwardly inclined conicalsealing surface.

In testimony whereof I hereunto aflix my slgnature.

FREDERICK LOBL. 

